OPTICAL PUMPING MAGNETOMETER AND MAGNETIC SENSING METHOD

• Main Authors: KOBAYASHI TETSUO, MIZUTANI NATSUHIKO, ICHIHARA SUNAO, ITO YOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 02.02.2017
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide an optical pumping magnetometer which is an atomic magnetic sensor performing multipoint measurement by use of a single cell to be capable of separating magnetic information of spatially different locations so as to measure at the same time in a constitution radiating a plurality of probe light beams or pump light beams, and a magnetic sensing method.SOLUTION: An optical pumping magnetometer and a magnet sensing method is provided in which a relaxation light beam is radiated between a plurality of measurement areas consisting of pump light beams and probe light beams to prevent mixture of spin polarization so that separation accuracy of magnetic signals that are spatially different is high.SELECTED DRAWING: Figure 1 【課題】単一のセルで多点計測する原子磁気センサであって、複数のプローブ光またはポンプ光を照射する構成において空間的に異なる場所の磁気情報を分離して同時に測定しうる光ポンピング磁力計及び磁気センシング方法を提供する。【解決手段】ポンプ光とプローブ光で構成される複数の計測領域間に緩和光を照射することで、スピン偏極が混じり合うのを防ぎ、空間的に異なる磁気信号の分離精度が高い光ポンピング磁力計及び磁気センシング方法を提供する。【選択図】図１